Disc Operating System (DOS)
While working with MS-DOS, which command is used to undelete a bunch of files with extension DOC that you have just deleted?

UNDELETE/ALL
UNDELETE *.DOC
UNDELETE
UNDELETE/LIST
None of these

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Disc Operating System (DOS)
Which of the following applies to external DOS commands?

External commands are stored on disk separately from COMMAND.COM
External commands can only be executed from a batch file.
External commands must always be used with the /e switch
External commands reside in RAM until called

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